Brand Certified
Zagros Heating & Air Conditioning
4.8(81 reviews)
Certified by Zagros Heating & Air Conditioning • May 17, 2026
Business Details
1420 Shepard Dr #B12, Sterling, VA
20164, United States
Certified by Zagros Heating & Air Conditioning • May 17, 2026
(571) 657-1190
Certified by Zagros Heating & Air Conditioning • May 17, 2026
http://zagrosllc.com/
Certified by Zagros Heating & Air Conditioning • May 17, 2026
About
Certified by Zagros Heating & Air Conditioning • May 17, 2026
HVAC Contractor
Zagros Heating & Air Conditioning provides residential and commercial heating, air conditioning, air quality, seasonal maintenance, thermostat, ventilation, and water heater services in Northern Virginia & surrounding areas.
Details
- Requires appointmentAvailable
- Onsite servicesAvailable
- Free parking garageNot available
- Free parking lotAvailable
Location
Certified by Zagros Heating & Air Conditioning • May 17, 2026
Zagros Heating & Air Conditioning
1420 Shepard Dr #B12, Sterling, VA
20164, United States
Hours
Certified by Zagros Heating & Air Conditioning • May 17, 2026
Monday8:00 AM - 5:00 PM
Tuesday8:00 AM - 5:00 PM
Wednesday8:00 AM - 5:00 PM
Thursday8:00 AM - 5:00 PM
Friday8:00 AM - 5:00 PM
SaturdayClosed
SundayClosed
11/26/20268:00 AM - 5:00 PM
11/27/20268:00 AM - 5:00 PM
12/25/20268:00 AM - 5:00 PM
1/1/20278:00 AM - 5:00 PM
Reviews
4.8
81 reviews
5 stars
76
4 stars0
3 stars0
2 stars1
1 star
4
- VBVera Blouir1 day ago5.0We’ve been using Zagros for 10+ years and trust them completely. Their technicians are knowledgeable, prompt, professional, and consistently do excellent work. What really sets them apart is their honesty. They never try to pressure us into unnecessary products or services, which is rare these days. We know we can count on them to give straightforward recommendations and quality service every time. We’ve always been very happy with the results.
- JKjalal kimiaMay 2, 20265.0I had a really great experience with Zagros Heating & Air Conditioning. They installed a new HVAC system for me, and the whole process was smooth from start to finish. The team showed up on time, worked efficiently, and explained everything clearly without any pressure. The installation was clean and professional, and pricing felt fair. Overall, super reliable—I’d definitely recommend them and would use them again!
- JBJay B.May 2, 20265.0⭐️⭐️⭐️⭐️⭐️ Consistently excellent service. This company is reliable, professional, and truly committed to keeping customers comfortable. Their team communicates clearly, shows up on time, and delivers quality work every time. It’s refreshing to work with an AC company that values honesty, efficiency, and great customer care. Highly commended. The owner Ray is fantastic.
- SCSylvia CMay 2, 20265.0Highly recommend Zagros HVAC services. The tech arrived on time, wore shoe covers, was so polite and did a thorough job inspecting our dual heating/AC units. Not everyone services Carrier systems so I always use Zagros and they never disappoint.
- MDMichele DalesandroApr 6, 20265.0Great product installed at a great price. Zagros was much cheaper that the other estimates I received. Their technicians protected my rugs and cleaned up after the install. The heating/cooling system is working well. They answered all my questions and explained how to use the system as the seasons change.
Frequently Asked Questions About Zagros Heating & Air Conditioning
What areas do you serve?
We serve Sterling, Ashburn, Herndon, Reston, Fairfax, and the surrounding Northern Virginia communities. If you are uncertain whether your location falls within our service area, contact us and we will confirm. If your address is slightly beyond our standard coverage zone, we will make every effort to assist you or provide a qualified referral.
What services do you offer?
We provide comprehensive HVAC and water heater services for residential and commercial properties. Our offerings include system repairs, replacements, new installations, preventive maintenance, diagnostic evaluations, indoor air quality improvements, and water heater services. Whether your equipment is producing unusual sounds, underperforming, or requires scheduled maintenance, we will identify the issue and deliver an appropriate solution.
Do you offer emergency HVAC service?
Yes. We understand that heating and cooling failures often occur without warning. When you experience an urgent situation, we respond promptly to restore comfort to your home or business as quickly as circumstances allow.
Why is HVAC maintenance important?
Regular maintenance allows your equipment to operate efficiently, extends its service life, and prevents unexpected failures during peak demand periods. Scheduled service enables us to identify minor concerns before they develop into costly repairs. Proactive maintenance is a more economical approach than addressing breakdowns after they occur.
Do you offer maintenance plans?
Yes. The Zagros Peak Performance Plan includes three service tiers: Basecamp, Ridge, and The Summit. Each level provides ongoing maintenance, cost savings, and priority service based on your selected coverage.
How often should I service my HVAC system?
We advise scheduling service twice annually: once prior to the cooling season and once before the heating season begins. This schedule ensures your equipment is prepared for periods of high demand. Spring and fall are typically the most appropriate times for these inspections.
Why is my AC blowing warm air?
Several factors may cause this condition, including insufficient refrigerant levels, a contaminated evaporator coil, inadequate airflow, electrical malfunctions, thermostat issues, or internal component failure. Some situations require straightforward corrections, while others indicate more significant system concerns. We can perform a diagnostic assessment and recommend the appropriate course of action.
How do I know if I need a repair or a replacement?
This determination depends on system age, overall equipment condition, repair costs, and failure frequency. If your unit is aging, operates inefficiently, uses phased-out refrigerant, or requires repeated repairs, replacement may represent a better long-term investment. If the problem is isolated and the equipment remains sound, repair may be the appropriate solution. We will present your options transparently so you can make an informed decision aligned with your budget and requirements.
What should I check before calling for service?
Before contacting us, verify your thermostat settings, ensure the circuit breaker has not tripped, confirm the system is receiving power, and inspect the air filter. A restricted filter can cause numerous performance issues. Additionally, confirm the thermostat is set to the intended operating mode. Many service calls result from settings that were inadvertently changed.
How long does it take to install a new HVAC system?
Most residential installations are completed within one day, though actual duration varies based on system size, home configuration, and whether ductwork modifications or other adjustments are necessary. More involved projects may require additional time, particularly when system upgrades or structural modifications are involved. We complete installations efficiently while minimizing disruption to your property.
Brand Certified Facts from Zagros Heating & Air Conditioning
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